Real Number Systems

Front

What is a real number?

Back

A real number is any value that represents a quantity along a continuous line, including all rational and irrational numbers.

Front

Define rational numbers.

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction; they have non-repeating, non-terminating decimal expansions.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.

Front

Convert 0.0003652 to scientific notation.

Back

3.652 x 10^-4

Front

Convert 42,670,000 to scientific notation.

Back

4.267 x 10^7

Front

What is the square root of 100?

Back

10

Front

Back

13

Front

Back

5.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.